Boiler-flue cleaner.



No. 868,403. PATENTED- OCT. 15, 1907. W. J. BRADLEY,

BOILER PLUE CLEANER. APPLIOATION FILED mm; 18. 1901.

' 2 SHEETS-SHEET 1.

Wm-N 55555 PATENTED OCT. 15, 1907.

W. J. BRADLEY. BOILER FLUE CLEANER.

APPLICATION FILED JUNE 18. 1907.

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, OF TROY, NEW YORK.

Specification of Letters Patent.

Patent-ed Get. 15, 1907.

Application filed June 18, i907. Serial N 379,601-

vRensseiiiez', and State of New York, have invented certainnew and useful improvements in Boiler-Flue Cleaners, of which the folli uving is a specification.

The invention relates to such iin'pnwements and consists of the novel construction and combination of parts hereinafter described and subsequently claimed. Reference may be had to the accompanying draw lugs, and the reference characters marked tucreon, which form zr part of this specification. Similar characters refer to similar parts in the several figures thereinj Figure l of the drawings is a view in central, vertical,

longitudinal section showing my invention applied to the setting oi euordinaryiorm ofsteom-boiler having liorizontalfiues. Fig. 2 13 a similar view, on .21.!1 e11- .lerged scale, with the boiler omitted. Fig. Sis siini iar view of the nozzle-end of the apparatus.

. The invention relates to a, class of stemmboilercleaners-employing a blast of steam directed againstthe ends oitlie fiues whereby the draft through the fines accelerated, accumulations of soot, ashes, &c.,

removed from the interior of the dues.

. The pi'incipal object of the invention is to simplify tlic construction and increase lillG-QfilCiQXlCY and dues. oility 0! such a steam-boilencl'eaner.

Reie'r' ring to the'drawings wherein the inventioiiis shown in preferred form, 1, represents the boiler having the horizontal fiues, 2, open at their rear ds to the combustion-chamber, 3, of the furnace, or which, 4, is eback well and, 5, the top arch;

Thesteam nozzle, ii extends through a horizontal rpertureiu the rein- Wall of the furnace, being rote- Lively mounted in bushings, 7 and 8, separate from other, the bushing, 7, being located in the outer end. of solid aperture in the rear wall, and the bushing,

3. i i-the inner'end thereof. Between the bushings, '7

and 8, the nozzle passes through, and is surrounded by, innit space 9. Near the outer side of the end Wall, 4,

the nozzle, 6, has an annular peripheral flange, 10,.

adapted to occupys seat in the outerend of the bushing, 7, and to be confined to said seat by a. split clamping ring, 11, the members of wh ch are boltedto the bushing, 7, as shown in. Figs. 1 and 2, whereby the nozzle is rotatively mounted Within the bushing, 7, but is prevented from longitudinal. movement relatively thereto, and to the furnace-Wall and boiler. The outer end of the nozzle has a. screw plug, 12, secured therein, through an aperture in which plug passes a steam-inletpine, 13, adopted to be connected with a source 01" steem-s'l ipply which may be the boiler l. The supply through the pipe, 13,,Iis controlled by it valve, 14. A. tight'joitit ifl-effectedbetween the pipe, 13, and the plug, 12, by means of a stufiing box 15. The outer end of the nozzle is provided with outwardly projecting spulces-ldmvhereby the nozzle can be rotated by hand. The nozzle .is of such a length that" when mounted in the furnace-Well, the innerend of the nozzle lies within the dimensions of the well, and Within o pocket or recess formed by the funnel-shaped end, 17, of the bushing The nozzle is provided in its inner end with a plurality of outlet apertures, 18, arranged at different distances from the axis of the nozzle endiuclinecl relatively thereto, the apertures diftures more remote from said axis preferably having the greater inclination. I have shown the nozzle thus provided with ten outlet apertures, as seen'in Fig. 3, one of said apertures being approximately at the axis or center of the bead; of the apertures being on one sideol' the emf I and three,,ou the other side thereof.. The interior of the nozzle is formed with deflecting surfaces, 19 and 20, whereby the passageway through the nozzle is caused to extend obliquely of the axle of the nozzle at the inner end thereof, causing the flow of steam through the nozzle to be delivered more directly to certain of the apertures on one side of the axis of the nozzle than to certain of the other apertures.

The bushing, 7, is built into the brickwork of the furnacewull by means of flanges on. its inner and outer ends; and the bushing, 8, issiniilarly built into the Well by 1191315 of flanges on its inner. and outer ends, one of which flanges forms the funnel-shaped ,end, 17, of said bushing.

ln operating the device, a supply of steani is admitted through the supply pipe, 13, into the nozzle, 6,

and. escapes thence through the various outlet ape-rtures, 18, from which it is projectedin jets against the open ends of the fines, 2, and against certain of the Wells ol the combustion-chamber, thus serving to fOIClv bly detach from the surfaces with which it comes in contact accumulations of soot, ashes, and the like, While at the some time it accelerates the draft and causes the detached material to be carried through the fines into the stack (not shown). While the steam is thus being directedaga inst the open ends of the fiues, the nozzle is rotated by hand, causing the steam jets to traverse all 01'' the space occupied by the flue ends in the neighboring head of the boiler. The operation may be continued for aslong atime as desired, and may be repeated as frequently as desired or found necessary.

While I have described the use of steam with my improved apparatus, the apparatus is adapted for use with any fluid under pressure.

The upper part of the funnel-shaped end, 17, of the bushing, 8, is preferably formed with a curved deflecting surface, as shown at, 22, in Fig. l, to deflect away from the top arch of the furnace the steam from the upto be forced tightly against the inner end of the screw plug, 12, by the reaction of the steam entering the nozzle.

What I claim as new and desire to secure by Letters Patent is v 1. In an apparatus of the class described, the combination with the boiler-head; flues opening therethrough; and a furnace-wall opposite said flueopenings; of a pair of separate bushings individually mounted in the opposite ends of an aperture -in said wall with a free air-space be-' tween said bushings; a nozzle rotatively mounted in said bushings and provided in its inner end with an outlet aperture arranged at an angle to the axis of the nozzle; means for supplying steam to said nozzle; and means whereby said nozzle can be rotated.

2. In an apparatus of the class described, the combination with the boiler-head; flues opening" therethrongh; and a furnace-wall opposite said flue-openings; of a nozzle rotatively mounted in an aperture in said wall and provided in its inner end with an aperture inclined to the axis of the nozzle, said nozzle having interior inclined surfaces whereby an oblique passageway is formed near its inner end leading to said inclined outlet aperture; means for supplying steam to said nozzle; and means whereby said nozzle can be rotated.

3, In an apparatus of the class described, the combination with the boilerhead; and fines opening therethrough;

of a furnace-wall provided with an aperture; a nozzle ro-' tatively mounted at its inner and outer ends in said aperture with its inner end opposite said boiler-l1ead, and having its intermediate portion surrounded by a free airspace within said wall ;-means for supplying steam to said nozzle; and means whereby the nozzle can be rotated.

4. In a device of the class described, the combination with the boiler-head; and lines opening therethrough; of a furnace-wall provided with an aperture opening toward said boiler-head; an externally flanged bushing for said aperture built, into said wall, and provided with an annu lar seat surrounding the opening through said bushingy a nozzle rotatively mounted within said bushing and aperture, and having an, external flange adapted to occupy said seat in said bushing; means for holding said nozzleflange in said seat; 'rneans whereby said nozzle can be rotated; and means tor supplying steam to said nozzle.

0. In an apparatus of the class described, the combination with the boiler-head; fines opening therethrough;

and a furnacewvall opposite said flue-openings; of a nozzle rotatively mounted in an aperture in said wall and provided in its inner end with an outlet aperture at one' side of the axis of the nozzle, said nozzle having interior inclined surfaces whereby an oblique passageway is formed near its end leading to said outlet aperture means for supplying steam to said nozzle; and means whereby said nozzle can be rotated.

6. In an apparatus of the class described, the combination with the boileuhead; fines opening therethrough; a furnace-wall opposite said flue-openings; and the top arch of the combustion-chamber; of a nozzle rotatively mounted in an aperture in said wall and provided in its inner end with an aperture inclined to the axis of the,

nozzle; :1 bushing for the inner end of the nozzle having a funnel-shaped end open to the cornbustionchamber opposite said flue-openings, and having the upper portion of said funnel-shaped end formed with a curved deflecting surface whereby an upwardly directed jet from the nozzle will be deflected away from the top arch; means for supplying steamto said nozzle; and means whereby said noz zle can be rotated.

In' testimony whereof, I have hereunto set my hand this 15th dayof June, 1907.

WILLIAM J. BRADLEY.

Witnesses E. M. OREILILY; J. DONSBACH. 

